DJI WooKong-M - Manual (Page 8)

©2013-2014 DJI Innovations. All Rights Reserved. 8 |
Step
4
Compass Calibration
Without GPS module, please skip this step. If you use with GPS module, follow step-by-step for calibration.
 DO NOT calibrate your compass where there is strong magnetic interference, such as
magnetite, car park, and steel reinforcement under the ground.
 DO NOT carry ferromagnetic materials with you during calibration, such as keys or cell phones.
 Compass module CANNOT work in the polar circle.
Calibration Procedures
1. Quickly switch the control mode switch from GPS Mode to Manual Mode and back to GPS Mode for 6 to
10 times. The LED indicator will turn on solid BLUE.
2. Rotate your Multi-rotor around the horizontal axis (about 360 o ) until the LED changes to solid GREEN,
and then go to the next step.
3. Hold your Multi-rotor vertically and rotate it (its nose MUST be downward) around the vertical axis (about
360 o ) until the LED turns off, meaning the calibration is finished.
4. The LED indicator will show whether the calibration is successful or not.
 If the LED keeps WHITE for 3 seconds, meaning the calibration is successful, and then calibration
mode will exit automatically.
 If the LED keeps flashing quickly RED, the calibration has failed. Switch the control mode switch
one time to cancel the calibration, and then re-start from step 1.
1. You don’t need to rotate your multi-rotor on a precise horizontal or vertical surface, but keep at
least 45° difference between horizontal and vertical calibration.
2. If you keep having calibration failure, it might suggest that there is very strong magnetic
interference around the GPS & Compass module, please avoid flying in this area.
3. When to do re-calibration.
 The flight field is changed.
 The multi-rotor mechanical setup has changed, including the following situations:
a) If the GPS & Compass module is re-positioned.
b) Electronic devices added, removed or re-positioned (Main Controller, servos, batteries, etc).
c) When the mechanical structure of the multi-rotor is changed.
 If the flight direction appears shifting (meaning the multi-rotor doesn’t “fly straight”).
 The LED indicator often indicates abnormality blinking when the multi-rotor spins. But it is normal
for this to happen only occasionally.
 LED blinks yellow and green ( ) continually, indicating that the compass data is abnormal.